30775544128 has 336 divisors, whose sum is σ = 77669867520. Its totient is φ = 11833113600.

The previous prime is 30775544123. The next prime is 30775544153. The reversal of 30775544128 is 82144557703.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30775544123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 433458333 + ... + 433458403.

It is an arithmetic number, because the mean of its divisors is an integer number (231160320).

Almost surely, 2^30775544128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30775544128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38834933760).

30775544128 is an abundant number, since it is smaller than the sum of its proper divisors (46894323392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30775544128 is a wasteful number, since it uses less digits than its factorization.

30775544128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 46.

The spelling of 30775544128 in words is "thirty billion, seven hundred seventy-five million, five hundred forty-four thousand, one hundred twenty-eight".